how to use map method in react js code example

Example 1: map function in react

function NameList() {
	const names = ['Bruce', 'Clark', 'Diana']
    return (
    	<div>
      {names.map(name => <h2>{name}</h2>)}
      	</div>
    )
}

Example 2: react map example leaflets

<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/leaflet/1.3.1/leaflet.css">